. >> the attacks on the civilians in benghazi were attacks on america. there should be no doubt that we will be relentless on tracking down the killers and bringing them to justice. >> there is no speech that justifies mindless violence. >> mitt romney has tried to cast president obama as a weak leader in terms of the global situation. too quick to apologize for american values. >>> what crews uncovered under san francisco's city hall after the '06 earthquake. and what they'll do next. >>> a bay area doctor is sounding the alarm on what she calls a concussion crisis for young athletes. >>> cars without drivers? a google idea gets the green light on california highways. >>> plus, the added features some are speculating on. >>> and good evening, i'm jeff ranieri in the nbc bay area weather center, 64 right now in san jose. and for our wednesday forecast, temperatures are expected to go up into the mid-70s near san jose. we'll talk about who will hit 90 degrees comingp in a few minutes. >>> so you're in the car but you're not driving the car. google is driv